CN208169088U - Eccentric crankshaft and compressor - Google Patents
Eccentric crankshaft and compressor Download PDFInfo
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- CN208169088U CN208169088U CN201820739352.2U CN201820739352U CN208169088U CN 208169088 U CN208169088 U CN 208169088U CN 201820739352 U CN201820739352 U CN 201820739352U CN 208169088 U CN208169088 U CN 208169088U
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- eccentric
- oil duct
- eccentric shaft
- blind hole
- compressor
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Abstract
The utility model provides a kind of eccentric crankshaft and compressor, is related to the technical field of compressor.The eccentric crankshaft, including：Long axis, eccentric shaft and balance weight；The long axis is connected with the eccentric shaft by the balance weight；The balance weight is equipped with boss, and the eccentric shaft is equipped with the groove matched with the boss, and the boss is fixedly connected with the groove.To alleviate the technical problem that cylinder performance existing in the prior art is low or overall cost is high.
Description
Technical field
The utility model relates to Compressor Technology fields, more particularly, to a kind of eccentric crankshaft and compressor.
Background technique
Reciprocating compressor belongs to positive displacement compressor, is that the gas of a constant volume is made sequentially to suck and be discharged closing sky
Between compressor.Crankshaft in compressor drives connecting rod, connecting rod band piston, and piston moves reciprocatingly.Piston motion makes cylinder
Interior working chamber volume changes, and when piston is moved from outer dead point to inner dead point, inlet open, exhaust valve, which is in, is closed
State, working chamber volume increase, and air, which is sucked into, to be come, and when piston motion to inner dead point, intake valve is closed, and complete air inlet
Journey, working chamber volume reach maximum；As crankshaft continues to turn round, piston is moved from inner dead point to outer dead point, at this time working chamber at
For a closed volume, intracavity gas is compressed, and reaches pressure at expulsion, completes compression process；Then exhaust valve is opened, work
Intracavity gas is fully drained cylinder, completes exhaust process.
Compressor cylinder base 4 ' in the prior art provides peace when assembling connecting rod 2 ' as shown in Figure 1, being equipped with crescent 1 '
Space is filled, but the presence of crescent 1 ' will cause compressor performance to reduce, experiment shows from performance, and no crescent 1 ' is pressed
Contracting machine ratio has crescent compressor high by 2% or so.Meanwhile the processing of crescent 1 ' increases the production cost of cylinder block 4 '.Often
Seeing is that connecting rod is arranged to split type without 1 ' installing connecting rods means of crescent, and the method seriously reduces structural strength, and can not protect
Demonstrate,prove the two hole depth of parallelism of connecting rod.Meanwhile Split connecting rod connecting portion installation requirement is high, processing difficulties increase the difficult processing of connecting rod
Degree and processing charges.
To sum up, in the prior art the shortcomings that, has：
1. there is crescent, reduce piston seal band, increase leakage, reduces performance；
2. without crescent；Using Split connecting rod, the depth of parallelism is difficult to guarantee, and reliability is low.
Utility model content
The first of the utility model is designed to provide a kind of eccentric crankshaft, to alleviate cylinder existing in the prior art
The low or high overall cost technical problem of energy.
Based on above-mentioned first purpose, eccentric crankshaft provided by the utility model, including：Long axis, eccentric shaft and balance weight；
The long axis is connected with the eccentric shaft by the balance weight；
The balance weight is equipped with boss, and the eccentric shaft is equipped with the groove matched with the boss, the boss and institute
Groove is stated to be fixedly connected.
As further technical solution, the boss is rotary table.
As further technical solution, the first oil duct is equipped in the eccentric shaft, be equipped in the balance weight with it is described
Second oil duct of the first oil duct connection.
As further technical solution, the long axis is equipped with the first blind hole, and second oil duct both ends are respectively communicated with
To the first oil duct and the first blind hole.
As further technical solution, the center line of first oil duct inclines relative to the central axis of the eccentric shaft
Tiltedly setting；
The center line of second oil duct is obliquely installed relative to the central axis of the eccentric shaft.
As further technical solution, the eccentric shaft is equipped with the 4th blind hole, the 4th blind hole and described first
Oil duct connection, the outer surface of the eccentric shaft are equipped with the second oil groove being connected to the 4th blind hole, and second oil groove prolongs
It stretches direction and the axis direction of the eccentric shaft is arranged in parallel.
As further technical solution, the outer surface of the long axis is equipped with helical oil groove, one end of the helical oil groove
It is connected to the first blind hole, the other end is connected to the second blind hole that long axis is arranged in.
As further technical solution, it is equipped with third oil duct in the long axis, the third oil duct and described second blind
Hole connection.
As further technical solution, the third blind hole being connected to the third oil duct is additionally provided on the long axis.
The second of the utility model is designed to provide a kind of compressor, to alleviate cylinder performance existing in the prior art
Low or high overall cost technical problem.
Based on above-mentioned second purpose, compressor provided by the utility model, including the eccentric crankshaft.
The utility model bring has the beneficial effect that：
Eccentric crankshaft provided by the utility model, including：Long axis, eccentric shaft and balance weight；Long axis and eccentric shaft pass through flat
The block that weighs connects；Balance weight is equipped with boss, and eccentric shaft is equipped with the groove matched with boss, and boss is fixedly connected with groove.It uses
Eccentric crankshaft provided by the utility model can cancel cylinder block crescent, the process for saving processing crescent, save the cost.Make
Used time changes assemble sequence, first installs connecting rod, then connecting rod and eccentric shaft are installed, later again connects eccentric shaft and balance weight
It connects.In addition, eccentric shaft is separated with balance weight separately machined, processing method is simple, and separately machined eccentric shaft and balance
When block alternative one is damaged, the part that do not damage can be used with technology, save the cost.Eccentric shaft is isolated from balance weight
Come, realizes without crescent moon slot type connecting rod mounting technique.Achieve the purpose that cancel crescent, increase band, finally promotes compressor
Overall performance.
In addition, the utility model additionally provides a kind of compressor, including the eccentric crankshaft.Wherein, eccentric crankshaft
Structure, working principle and beneficial effect are described in detail in the beneficial effect of eccentric crankshaft, and details are not described herein.On
Stating compressor, possessed advantage is identical compared with the existing technology with eccentric crankshaft provided by the utility model, no longer superfluous herein
It states.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model prior art；
Fig. 2 is the structural schematic diagram at first visual angle of eccentric crankshaft that the utility model embodiment one provides；
Fig. 3 is the cross-sectional view of Fig. 2；
Fig. 4 is the structural schematic diagram at second visual angle of eccentric crankshaft that the utility model embodiment one provides；
Fig. 5 is the structural schematic diagram at the eccentric crankshaft third visual angle that the utility model embodiment one provides.
Icon：1 '-crescent；2 '-connecting rods；4 '-cylinder blocks；6 '-eccentric shafts；7 '-balance weights；5- long axis；6-
Eccentric shaft；7- balance weight；8- boss；9- groove；The first oil duct of 10-；The second oil duct of 11-；The first blind hole of 12-；13-
Second blind hole；14- third blind hole；The 4th blind hole of 15-；16- helical oil groove；The second oil groove of 17-；18- third oil duct.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", " left side ",
" right side ", "vertical", "horizontal", "inner", "outside" etc., indicated by orientation or positional relationship be orientation based on the figure or
Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, such as there is term " first ", " second ", being used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Wherein, term " first position " and " second position " are two different positions.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
The utility model provides a kind of eccentric crankshaft and compressor, and multiple embodiments are given below and mention to the utility model
The eccentric crankshaft and compressor of confession are described in detail.
Embodiment one
As shown in Figs. 1-5, the eccentric crankshaft that the utility model embodiment one provides, including：Long axis 5,6 peace of eccentric shaft
Weigh block 7；Long axis 5 and eccentric shaft 6 are connected by balance weight 7；Balance weight 7 is equipped with boss 8, and eccentric shaft 6 is equipped with and matches with boss 8
Groove 9, boss 8 is fixedly connected with groove 9.Cylinder block crescent can be cancelled using eccentric crankshaft provided by the utility model
1 ', the process for saving processing crescent 1 ', save the cost.Change assemble sequence when use, first install connecting rod 2 ', then by connecting rod
2 ' install with eccentric shaft 6, later again connect eccentric shaft 6 with balance weight 7.In addition, eccentric shaft 6 is separated independence with balance weight 7
Processing, processing method is simple, and when separately machined eccentric shaft 6 and the damage of 7 alternative one of balance weight, the part that do not damage
It can be used with technology, save the cost.Eccentric shaft 6 is separated from balance weight 7, realizes and is installed without 1 ' formula connecting rod 2 ' of crescent
Technology.Achieve the purpose that cancel crescent 1 ', increase band, it is final to promote compressor overall performance.
It should be noted that welding or interference fit type can be used in the installation of eccentric shaft 6, realizes and connect without 1 ' formula of crescent
2 ' mounting technique of bar.
In use, the both ends of connecting rod 2 ' respectively in cylinder piston and eccentric shaft 6 by pin connection, later again will be eccentric
Axis 6 is connect with balance weight 7.It ensure that the globality of cylinder block and the structural integrity of connecting rod 2 '.Reduce cylinder block or connecting rod
2 ' processing waste, has saved processing cost, has improved production efficiency.
It should also be noted that, eccentricity can according to need and be adjusted in the present embodiment.Wherein, in the present embodiment,
Eccentricity is long axis center at a distance from eccentric axis center.
In the present embodiment, eccentric shaft 6 can become general purpose accessory, realize automated production.
In the optinal plan of the present embodiment, boss 8 is rotary table.Increase the contact surface of the junction of eccentric shaft 6 and balance weight 7
Product, further increases bonding strength.
In the optinal plan of the present embodiment, it is equipped with the first oil duct 10 in eccentric shaft 6, is equipped with and the first oil duct in balance weight 7
Second oil duct 11 of 10 connections.The greasy property for being conducive to improve each component of compressor, to reduce the input work of compressor
Rate improves the working efficiency and efficiency of compressor.
Specifically, the second oil duct 11 runs through boss 8.
In the optinal plan of the present embodiment, long axis 5 is equipped with the first blind hole 12, and 11 both ends of the second oil duct are respectively communicated to the
One oil duct 10 and the first blind hole 12.The greasy property for being conducive to improve each component of compressor, to reduce the input of compressor
Power improves the working efficiency and efficiency of compressor.
In the optinal plan of the present embodiment, the center line of the first oil duct 10 is set relative to the central axis inclination of eccentric shaft 6
It sets；The center line of second oil duct 11 is obliquely installed relative to the central axis of eccentric shaft 6.Both machine oil can be made to flow in oblique oil duct
It moves unimpeded, guarantees the greasy property of system, and can guarantee the structural strength of crankshaft, to guarantee that the use reliability of crankshaft has
Conducive to the greasy property for each component for improving compressor, to reduce the input power of compressor, the work effect of compressor is improved
Rate and efficiency.
In the optinal plan of the present embodiment, the eccentric shaft 6 be equipped with the 4th blind hole 15, the 4th blind hole 15 with it is described
The connection of first oil duct 10, the outer surface of the eccentric shaft 6 are equipped with the second oil groove 17 being connected to the 4th blind hole 15, and described the
The extending direction of two oil grooves 17 and the axis direction of the eccentric shaft 6 are arranged in parallel.
In the optinal plan of the present embodiment, the outer surface of long axis 5 is equipped with helical oil groove 16, one end of helical oil groove 16 and the
The connection of one blind hole 12, the other end are connected to the second blind hole 13 that long axis 5 is arranged in.Machine oil can by helical oil groove 16 respectively into
Enter in the first blind hole 12 and the second blind hole 13, guarantees flowing of the machine oil in crankshaft, to improve the greasy property of system, today
Improve the performance of compressor.Be conducive to improve the greasy property of each component of compressor, so that the input power of compressor is reduced,
Improve the working efficiency and efficiency of compressor.
In the optinal plan of the present embodiment, third oil duct 18 is equipped in long axis 5, third oil duct 18 and the second blind hole 13 connect
It is logical.The greasy property for being conducive to improve each component of compressor improves the work of compressor to reduce the input power of compressor
Make efficiency and efficiency.
In the optinal plan of the present embodiment, the third blind hole 14 being connected to third oil duct 18 is additionally provided on long axis 5.Be conducive to
The greasy property for improving each component of compressor, to reduce the input power of compressor, improve compressor working efficiency and
Efficiency.
Embodiment two
The utility model embodiment two additionally provides a kind of compressor, the eccentric crankshaft provided including embodiment one.Wherein,
Structure, working principle and the beneficial effect of eccentric crankshaft are described in detail in the beneficial effect of eccentric crankshaft, herein
It repeats no more.Possessed advantage is identical compared with the existing technology with eccentric crankshaft provided by the utility model for above-mentioned compressor,
Details are not described herein.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand：It is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is practical new in this
Within the scope of type and form different embodiments.For example, in claims above, embodiment claimed
It is one of any can in any combination mode come using.The information disclosed in the background technology section is intended only to deepen
Understanding to the general background technology of the utility model, and be not construed as recognizing or implying in any form that the information is constituted
The prior art known to those skilled in the art.
Claims (10)
1. a kind of eccentric crankshaft, which is characterized in that including：Long axis, eccentric shaft and balance weight；
The long axis is connected with the eccentric shaft by the balance weight；
The balance weight is equipped with boss, and the eccentric shaft is equipped with the groove that matches with the boss, the boss with it is described recessed
Slot is fixedly connected.
2. eccentric crankshaft according to claim 1, which is characterized in that the boss is rotary table.
3. eccentric crankshaft according to claim 2, which is characterized in that the first oil duct is equipped in the eccentric shaft, it is described flat
The second oil duct being connected to first oil duct is equipped in weighing apparatus block.
4. eccentric crankshaft according to claim 3, which is characterized in that the long axis be equipped with the first blind hole, described second
Oil duct both ends are respectively communicated to the first oil duct and the first blind hole.
5. eccentric crankshaft according to claim 3, which is characterized in that the center line of first oil duct is relative to described inclined
The central axis of mandrel is obliquely installed；
The center line of second oil duct is obliquely installed relative to the central axis of the eccentric shaft.
6. eccentric crankshaft according to claim 3, which is characterized in that the eccentric shaft is equipped with the 4th blind hole, and described the
Four blind holes are connected to first oil duct, and the outer surface of the eccentric shaft is equipped with the second oil groove being connected to the 4th blind hole,
The axis direction of the extending direction and the eccentric shaft of second oil groove is arranged in parallel.
7. eccentric crankshaft according to claim 1-6, which is characterized in that the outer surface of the long axis is equipped with spiral shell
Oil groove is revolved, one end of the helical oil groove is connected to the first blind hole, and the other end is connected to the second blind hole that long axis is arranged in.
8. eccentric crankshaft according to claim 7, which is characterized in that be equipped with third oil duct, the third in the long axis
Oil duct is connected to second blind hole.
9. eccentric crankshaft according to claim 8, which is characterized in that be additionally provided on the long axis and connect with the third oil duct
Logical third blind hole.
10. a kind of compressor, which is characterized in that including the described in any item eccentric crankshafts of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820739352.2U CN208169088U (en) | 2018-05-17 | 2018-05-17 | Eccentric crankshaft and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820739352.2U CN208169088U (en) | 2018-05-17 | 2018-05-17 | Eccentric crankshaft and compressor |
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| Publication Number | Publication Date |
|---|---|
| CN208169088U true CN208169088U (en) | 2018-11-30 |
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ID=64368029
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820739352.2U Active CN208169088U (en) | 2018-05-17 | 2018-05-17 | Eccentric crankshaft and compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915100A (en) * | 2021-11-03 | 2022-01-11 | 芜湖欧宝机电有限公司 | Assembly method of compressor with gear mechanism driving piston |
-
2018
- 2018-05-17 CN CN201820739352.2U patent/CN208169088U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915100A (en) * | 2021-11-03 | 2022-01-11 | 芜湖欧宝机电有限公司 | Assembly method of compressor with gear mechanism driving piston |
| CN113915100B (en) * | 2021-11-03 | 2024-02-20 | 芜湖欧宝机电有限公司 | Assembling method of compressor with gear mechanism driving piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210701 Address after: No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Huangshi City, Hubei Province Patentee after: Huangshi Dongbei Compressor Co.,Ltd. Address before: No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Huangshi City, Hubei Province Patentee before: Huangshi Dongbei Electrical Appliance Co.,Ltd. |
|
| TR01 | Transfer of patent right |